Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Breakdown of Income Tax Expense Between Current and Deferred

The breakdown of income tax expense between current and deferred is as follows:

	Fiscal Years
(Dollars in Millions)	2018		2017			2016
Current:
Federal	$	572	$	787		$	540
State	144		117			82
Subtotal Current	716		904			622
Deferred:
Federal	275		(3,277		)	355
State	4		44			50
Subtotal Deferred	279		(3,233		)	405
Total	$	995	$	(2,329	)	$	1,027

Schedule of Income Tax Expense Reconciled to Tax Computed at Statutory Rates

Income tax expense reconciled to the tax computed at statutory rates is presented in the following table. 

	Fiscal Years
(Dollars In Millions)	2018					2017					2016
Federal Income Taxes	$	904		21.0	%	$	1,100		35.0	%	$	959		35.0	%
State Income Taxes	112			2.6	%	102			3.2	%	83			3.0	%
Deferred Tax Rate Change	—			—	%	(3,506		)	(111.6	)%	—			—	%
Other	(21		)	(0.5	)%	(25		)	(0.8	)%	(15		)	(0.5	)%
Income Tax (Benefit) Expense/Rate	$	995		23.1	%	$	(2,329	)	(74.2	)%	$	1,027		37.5	%

Schedule of Significant Components of Deferred Income Tax Assets and Liabilities

The significant components of deferred income tax assets and liabilities include:

	2018				2017
(Dollars in Millions)	Assets		Liabilities		Assets		Liabilities
Pension Plans	$	79	$	—	$	41	$	—
Other Employee Benefit Plans	146		—		182		—
Accelerated Depreciation	—		6,799		—		6,576
Other	529		645		657		722
Total	$	754	$	7,444	$	880	$	7,298
Net Deferred Income Tax Liabilities			$	6,690			$	6,418

Schedule of Change to Total Gross Unrecognized Tax Benefits

The change to the total gross unrecognized tax benefits and prior year audit resolutions of the Company during the fiscal year ended December 2018 is reconciled in the table below.

Unrecognized Tax Benefits:	Fiscal Year
(Dollars in Millions)	2018			2017			2016
Balance at beginning of the year	$	24		$	25		$	23
Additions based on tax positions related to current year	1			1			1
Additions based on tax positions related to prior years	3			4			4
Reductions based on tax positions related to prior years	—			—			—
Settlements with taxing authorities	(11		)	(4		)	—
Lapse of statute of limitations	(5		)	(2		)	(3		)
Balance at end of the year	$	12		$	24		$	25